Here is another thread mentioning the problem.
http://community.wdc.com/t5/My-Book-Live/Something-wrong-with-CNID-DB-in-OS-X-10-7-1/td-p/251742
Since the MBL was just unpacked today - I was hoping to find a quick way to maybe fix it with the update (which was directly installed after accessing the dashboard).
I am running Lion 10.7.2 here and SN 10.6.9 - both have the problem. smb works fine.